---
title: "trdsql SQL Query Engine for CSV JSON and YAML Files"
description: "trdsql is a CLI tool that executes SQL queries directly on CSV, LTSV, JSON, YAML, and TBLN files. It supports PostgreSQL and MySQL syntax, can join data across multiple files and databases, and outputs results in various formats including JSON, Markdown, and vertical display."
verification: "security_reviewed"
source: "https://github.com/noborus/trdsql"
category:
  - "Data Extraction & Transformation"
framework:
  - "Custom Agents"
tool_ecosystem:
  github_repo: "noborus/trdsql"
  github_stars: 2154
---

# trdsql SQL Query Engine for CSV JSON and YAML Files

trdsql is a CLI tool that executes SQL queries directly on CSV, LTSV, JSON, YAML, and TBLN files. It supports PostgreSQL and MySQL syntax, can join data across multiple files and databases, and outputs results in various formats including JSON, Markdown, and vertical display.

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/trdsql-sql-query-engine-csv-json-yaml-files/)